Title was too long to put, just read it
You know what's a really big pet peeve of mine? I can't stand it when I cough as I'm choking and someone tells me to cover my mouth so as not to spread germs.
Seriously? Would it kill you to ask if I'm okay instead of ordering me to not spread germs? It's especially annoying when the cough is spontaneous and my reflexes are too slow to cover my mouth in time.
Just imagine that you're drowning in a pool and a lifeguard gives you CPR. As you're coughing out water, a nearby random person tells you to cover your mouth as you cough. Seriously, get your priorities straight! It's SO annoying! I think it's rude when people criticize people for coughing on account of choking. I mean, it's a natural reflex. Coughing it out is better than keeping in it and choking on it.
Also, I find it annoying when I'm eating something really hot and need to suck in air to cool my food down and someone criticizes me for chewing with my mouth open. Seriously? I don't wanna burn my tongue! You try eating politely with hot food in your mouth, maybe YOU should burn your tongue off! Same goes for when I take a particularly large bite. I gotta open my mouth wide enough to muster enough bite force if I'm in a rush and wanna eat my meal quick without choking. If you don't like what you see then just look the fuck away.